Hello,

I try to build a battery powered temperature sensor but I only found one sensor who works with low power under 2 volt. This is the bmp280 from bosch. But in i2c mode he need a power from 0,6mA so my battery life are only 2 month. Now the library from adafruit runs the sensor in normal mode and so I insert two new functions in the library:

void Adafruit_BMP280::sleep() {
write8(BMP280_REGISTER_CONTROL, 0x3C);
}

void Adafruit_BMP280::wakeup() {
write8(BMP280_REGISTER_CONTROL, 0x3F);
}

The first one write 00 to the first bits in the data register - the sleep mode.
The wakeup function rewrite the first bits with 11 - the normal mode.

void loop() {
...
...

Temp = bmp.readTemperature();
Press = bmp.readPressure() / 100.0;
Altit = bmp.readAltitude(1013.25);

bmp.sleep();

sleep(30000);

bmp.wakeup();
}

Now the sketch needs only 0,2µA in the sleep mode - it is much more better than 0,6mA.

Best regards

Elmar

Hello,
oh ok I forgot the platformio.ini

[env:genericSTM32F103C8]
platform = ststm32
board = genericSTM32F103C8
framework = arduino

lib_extra_dirs = D:\Dropbox\Elektronik\platformio\libraries

lib_deps = https://github.com/mysensors/MySensors.git#development

upload_protocol = stlink

Best regards

Hello,

thank you for your help. I remove the .pioenvs folder and get the following messages:

Executing task in folder DimmerLED: C:\Users\elmar faber.platformio\penv\Scripts\platformio.exe run <

Processing genericSTM32F103C8 (framework: arduino; platform: ststm32; board: genericSTM32F103C8)

Verbose mode can be enabled via -v, --verbose option
CONFIGURATION: https://docs.platformio.org/page/boards/ststm32/genericSTM32F103C8.html
PLATFORM: ST STM32 > STM32F103C8 (20k RAM. 64k Flash)
HARDWARE: STM32F103C8T6 72MHz 20KB RAM (64KB Flash)
DEBUG: CURRENT(blackmagic) EXTERNAL(blackmagic, jlink, stlink)
Library Dependency Finder -> http://bit.ly/configure-pio-ldf
LDF MODES: FINDER(chain) COMPATIBILITY(soft)
Collected 84 compatible libraries
Scanning dependencies...
Dependency Graph
|-- <MySensors> 2.3.2-beta #7d907d1
| |-- <Wire> 1.0
| |-- <SdFat> 1.1.0
| | |-- <SPI> 1.0
| |-- <EEPROM>
| |-- <SPI> 1.0
| |-- <Time> 1.5
|-- <MySNodeID>
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduinoVariant\board.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduinoVariant\wirish\boards.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduinoVariant\wirish\boards_setup.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduinoVariant\wirish\start.S.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduinoVariant\wirish\start_c.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduinoVariant\wirish\syscalls.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\HardwareSerial.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\HardwareTimer.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\IPAddress.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\Print.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\Stream.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\WString.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\avr\dtostrf.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\cxxabi-compat.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\ext_interrupts.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\hooks.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\itoa.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\adc.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\adc_f1.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\bkp_f1.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\dac.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\dma.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\dma_f1.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\exc.S.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\exti.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\exti_f1.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\flash.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\fsmc_f1.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\gpio.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\gpio_f1.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\i2c.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\i2c_f1.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\iwdg.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\nvic.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\pwr.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\rcc.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\rcc_f1.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\spi.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\spi_f1.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\stm32f1\performance\isrs.S.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\stm32f1\performance\vector_table.S.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\systick.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\timer.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\timer_f1.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\usart.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\usart_f1.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\usart_private.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\usb\stm32f1\usb.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\usb\stm32f1\usb_cdcacm.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\usb\stm32f1\usb_reg_map.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\usb\usb_lib\usb_core.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\usb\usb_lib\usb_init.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\usb\usb_lib\usb_mem.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\usb\usb_lib\usb_regs.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\libmaple\util.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\main.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\new.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\pwm.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\sdio.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\stm32f1\util_hooks.c.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\stm32f1\wiring_pulse_f1.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\stm32f1\wirish_debug.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\stm32f1\wirish_digital_f1.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\tone.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\usb_serial.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\wirish_analog.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\wirish_digital.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\wirish_math.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\wirish_shift.cpp.o
Compiling .pioenvs\genericSTM32F103C8\FrameworkArduino\wirish_time.cpp.o
Compiling .pioenvs\genericSTM32F103C8\src\main.cpp.o
Compiling .pioenvs\genericSTM32F103C8\lib7e7\Wire\SoftWire.cpp.o
Compiling .pioenvs\genericSTM32F103C8\lib7e7\Wire\Wire.cpp.o
Compiling .pioenvs\genericSTM32F103C8\lib7e7\Wire\utility\WireBase.cpp.o
Compiling .pioenvs\genericSTM32F103C8\libaed\SPI\SPI.cpp.o
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\FatLib\FatFile.cpp.o
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\FatLib\FatFileLFN.cpp.o
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\FatLib\FatFilePrint.cpp.o
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src\SPI.cpp: In member function 'uint16_t SPIClass::transfer16(uint16_t) const':
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src\SPI.cpp:379:5: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
while (spi_is_busy(spi_d) != 0); // wait until BSY=0
^~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src\SPI.cpp:380:2: note: ...this statement, but the latter is misleadingly
indented as if it were guarded by the 'while'
uint16_t ret = spi_rx_reg(spi_d)<<8; // read and shift high byte
^~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src\SPI.cpp:383:5: warning: this 'while' clause does not guard... [-Wmisleading-indentation]
while (spi_is_busy(spi_d) != 0); // wait until BSY=0
^~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src\SPI.cpp:384:2: note: ...this statement, but the latter is misleadingly
indented as if it were guarded by the 'while'
ret += spi_rx_reg(spi_d); // read low byte
^~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src\SPI.cpp: In function 'spi_baud_rate determine_baud_rate(spi_dev*, uint32_t)':
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src\SPI.cpp:762:12: warning: enumeration value 'RCC_AHB' not handled in switch [-Wswitch]
switch (rcc_dev_clk(dev->clk_id))
^
In file included from .piolibdeps\MySensors/hal/architecture/STM32F1/MyHwSTM32F1.h:26:0,
from .piolibdeps\MySensors/hal/architecture/STM32F1/MyHwSTM32F1.cpp:20,
from .piolibdeps\MySensors/MySensors.h:70,
from src\main.cpp:23:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\FatLib\FatFileSFN.cpp.o
In file included from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SysCall.h:33:0,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SdCard/SdSpiCard.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/BlockDriver.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatVolume.h:34,
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\FatLib\FatVolume.cpp.ofrom C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatFile.h:38,

from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatFilePrint.cpp:26:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
In file included from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SysCall.h:33:0,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SdCard/SdSpiCard.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/BlockDriver.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatVolume.h:34,
fArom C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatFile.h:38,rchiving .pioenvs\genericSTM32F103C8\lib7e7\libWire.a

from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatFileLFN.cpp:25:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
In file included from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SysCall.h:33:0,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SdCard/SdSpiCard.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/BlockDriver.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatVolume.h:34,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatFile.h:38,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatFile.cpp:25:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
Indexing .pioenvs\genericSTM32F103C8\lib7e7\libWire.a
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\FatLib\FmtNumber.cpp.o
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\FatLib\StdioStream.cpp.o
In file included from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SysCall.h:33:0,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SdCard/SdSpiCard.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/BlockDriver.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatVolume.h:34,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatFile.h:38,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatFileSFN.cpp:25:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
In file included from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SysCall.h:33:0,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SdCard/SdSpiCard.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/BlockDriver.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatVolume.h:34,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatVolume.cpp:26:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
Archiving .pioenvs\genericSTM32F103C8\libaed\libSPI.a
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\FatLib\fstream.cpp.o
Indexing .pioenvs\genericSTM32F103C8\libaed\libSPI.a
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\FatLib\istream.cpp.o
In file included from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SysCall.h:33:0,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SdCard/SdSpiCard.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/BlockDriver.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatVolume.h:34,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatFile.h:38,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\StdioStream.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\StdioStream.cpp:25:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\FatLib\ostream.cpp.o
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\MinimumSerial.cpp.o
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\SdCard\SdSpiCard.cpp.o
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\SdCard\SdSpiCardEX.cpp.o
In file included from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SysCall.h:33:0,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SdCard/SdSpiCard.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/BlockDriver.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatVolume.h:34,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatFile.h:38,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\ios.h:27,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\istream.h:31,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\istream.cpp:28:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
In file included from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SysCall.h:33:0,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SdCard/SdSpiCard.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/BlockDriver.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatVolume.h:34,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatFile.h:38,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\fstream.h:31,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\fstream.cpp:25:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
In file included from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SysCall.h:33:0,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SdCard/SdSpiCard.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/BlockDriver.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatVolume.h:34,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\FatFile.h:38,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\ios.h:27,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\ostream.h:31,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\FatLib\ostream.cpp:26:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\SdCard\SdioCardEX.cpp.oIn file included from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SysCall.h:33:0,

from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\SdCard\SdSpiCard.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\SdCard\SdSpiCard.cpp:25:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
In file included from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\SysCall.h:33:0,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\MinimumSerial.cpp:25:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\SdCard\SdioTeensy.cpp.o
In file included from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SysCall.h:33:0,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\SdCard\SdSpiCard.h:32,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\SdCard\SdSpiCardEX.cpp:25:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\SpiDriver\SdSpiESP8266.cpp.o
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\SpiDriver\SdSpiParticle.cpp.o
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\SpiDriver\SdSpiSAM3X.cpp.o
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\SpiDriver\SdSpiSTM32.cpp.o
Compiling .pioenvs\genericSTM32F103C8\libe7f\SdFat_ID322\SpiDriver\SdSpiTeensy3.cpp.o
Compiling .pioenvs\genericSTM32F103C8\lib7a1\EEPROM\EEPROM.cpp.o
In file included from C:\users\elmar faber.platformio\lib\SdFat_ID322\src/SysCall.h:33:0,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\SdCard\SdioCard.h:27,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\SdCard\SdioCardEX.cpp:25:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
Compiling .pioenvs\genericSTM32F103C8\lib7a1\EEPROM\flash_stm32.c.o
Compiling .pioenvs\genericSTM32F103C8\lib608\Time_ID44\DateStrings.cpp.o
Compiling .pioenvs\genericSTM32F103C8\lib608\Time_ID44\Time.cpp.o
In file included from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\SpiDriver\SdSpiDriver.h:32:0,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\SpiDriver\SdSpiSAM3X.cpp:25:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
In file included from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\SpiDriver\SdSpiDriver.h:32:0,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\SpiDriver\SdSpiSTM32.cpp:26:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
Compiling .pioenvs\genericSTM32F103C8\lib776\MySensors\MyASM.S.o
C:\users\elmar faber.platformio\lib\Time_ID44\DateStrings.cpp: In function 'char* monthStr(uint8_t)':
C:\users\elmar faber.platformio\lib\Time_ID44\DateStrings.cpp:19:60: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
#define pgm_read_word(addr) ((const unsigned char *)(addr))
^
C:\users\elmar faber.platformio\lib\Time_ID44\DateStrings.cpp:20:45: note: in definition of macro 'strcpy_P'
#define strcpy_P(dest, src) strcpy((dest), (src))
^~~
C:\users\elmar faber.platformio\lib\Time_ID44\DateStrings.cpp:72:29: note: in expansion of macro 'pgm_read_word'
strcpy_P(buffer, (PGM_P)pgm_read_word(&(monthNames_P[month])));
^~~~~~~~~~~~~
C:\users\elmar faber.platformio\lib\Time_ID44\DateStrings.cpp: In function 'char dayStr(uint8_t)':
C:\users\elmar faber.platformio\lib\Time_ID44\DateStrings.cpp:19:60: warning: dereferencing type-punned pointer will break strict-aliasing rules [-Wstrict-aliasing]
#define pgm_read_word(addr) ((const unsigned char **)(addr))
^
C:\users\elmar faber.platformio\lib\Time_ID44\DateStrings.cpp:20:45: note: in definition of macro 'strcpy_P'
#define strcpy_P(dest, src) strcpy((dest), (src))
^~~
C:\users\elmar faber.platformio\lib\Time_ID44\DateStrings.cpp:86:28: note: in expansion of macro 'pgm_read_word'
strcpy_P(buffer, (PGM_P)pgm_read_word(&(dayNames_P[day])));
^~~~~~~~~~~~~
Archiving .pioenvs\genericSTM32F103C8\lib56a\libMySNodeID.a
Indexing .pioenvs\genericSTM32F103C8\lib56a\libMySNodeID.a
In file included from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\SpiDriver\SdSpiDriver.h:32:0,
from C:\users\elmar faber.platformio\lib\SdFat_ID322\src\SpiDriver\SdSpiTeensy3.cpp:25:
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:165:15: warning: '_spi2_this' defined but not used [-Wunused-variable]
static void (*_spi2_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:164:15: warning: '_spi1_this' defined but not used [-Wunused-variable]
static void (*_spi1_this);
^~~~~~~~~~
C:\users\elmar faber.platformio\packages\framework-arduinoststm32-maple\STM32F1\libraries\SPI\src/SPI.h:163:16: warning: 'ff' defined but not used [-Wunused-variable]
static uint8_t ff = 0XFF;
^~
Archiving .pioenvs\genericSTM32F103C8\lib776\libMySensors.a
Archiving .pioenvs\genericSTM32F103C8\libe7f\libSdFat_ID322.a
Indexing .pioenvs\genericSTM32F103C8\lib776\libMySensors.a
Indexing .pioenvs\genericSTM32F103C8\libe7f\libSdFat_ID322.a
Archiving .pioenvs\genericSTM32F103C8\lib7a1\libEEPROM.a
Archiving .pioenvs\genericSTM32F103C8\lib608\libTime_ID44.a
Indexing .pioenvs\genericSTM32F103C8\lib7a1\libEEPROM.a
Indexing .pioenvs\genericSTM32F103C8\lib608\libTime_ID44.a
Linking .pioenvs\genericSTM32F103C8\firmware.elf
.pioenvs\genericSTM32F103C8\src\main.cpp.o: In function premain()': main.cpp:(.text.startup._Z7premainv+0x0): multiple definition of premain()'
.pioenvs\genericSTM32F103C8\FrameworkArduino\main.cpp.o:main.cpp:(.text.startup._Z7premainv+0x0): first defined here
.pioenvs\genericSTM32F103C8\src\main.cpp.o: In function main': main.cpp:(.text.startup.main+0x0): multiple definition of main'
.pioenvs\genericSTM32F103C8\FrameworkArduino\main.cpp.o:main.cpp:(.text.startup.main+0x0): first defined here
collect2.exe: error: ld returned 1 exit status
*** [.pioenvs\genericSTM32F103C8\firmware.elf] Error 1
======================================================================= [ERROR] Took 7.30 seconds =======================================================================
The terminal process terminated with exit code: 1

Terminal will be reused by tasks, press any key to close it.

Yesterday I found a solution:

If I change the following line

// #include <MySensors.h>
#include <core/MySensorsCore.h>

then I could compile the code.

Best regards

Elmar

Hello,

after some updates MySensors not longer working with MySensors.
Here are the error:

Linking .pioenvs\genericSTM32F103C8\firmware.elf
.pioenvs\genericSTM32F103C8\src\main.cpp.o: In function premain()': main.cpp:(.text.startup._Z7premainv+0x0): multiple definition of premain()'
.pioenvs\genericSTM32F103C8\FrameworkArduino\main.cpp.o:main.cpp:(.text.startup._Z7premainv+0x0): first defined here
.pioenvs\genericSTM32F103C8\src\main.cpp.o: In function main': main.cpp:(.text.startup.main+0x0): multiple definition of main'
.pioenvs\genericSTM32F103C8\FrameworkArduino\main.cpp.o:main.cpp:(.text.startup.main+0x0): first defined here
collect2.exe: error: ld returned 1 exit status
*** [.pioenvs\genericSTM32F103C8\firmware.elf] Error 1
===================================================== [ERROR] Took 30.84 seconds =====================================================
The terminal process terminated with exit code: 1

I don't know if it is an error from PlatformIO or from MySensors. My other projects without MySensors Library are working fine.

Best regards

Elmar

Oh no it is 2µA

Hello,

I try to build a battery powered temperature sensor but I only found one sensor who works with low power under 2 volt. This is the bmp280 from bosch. But in i2c mode he need a power from 0,6mA so my battery life are only 2 month. Now the library from adafruit runs the sensor in normal mode and so I insert two new functions in the library:

void Adafruit_BMP280::sleep() {
write8(BMP280_REGISTER_CONTROL, 0x3C);
}

void Adafruit_BMP280::wakeup() {
write8(BMP280_REGISTER_CONTROL, 0x3F);
}

The first one write 00 to the first bits in the data register - the sleep mode.
The wakeup function rewrite the first bits with 11 - the normal mode.

void loop() {
...
...

Temp = bmp.readTemperature();
Press = bmp.readPressure() / 100.0;
Altit = bmp.readAltitude(1013.25);

bmp.sleep();

sleep(30000);

bmp.wakeup();
}

Now the sketch needs only 0,2µA in the sleep mode - it is much more better than 0,6mA.

Best regards

Elmar

In the last days I have read some discussions about BMP280/BME280 and there are some notes about this problem.

Yes but the supply voltage range is from 2.4 V to 5.5 V

But humidity sensor temperature values are not very accurate, often they messure 1-3°C more then the DS18S20.
From a datasheet of a humidity sensor:
"Please note: The temperature reading will display the temperature of the heated sensor element and not ambient temperature." They use the temperature mesurement for the calculation of the humidity value.
I search for a low volt temperature sensor but it is very difficult to find such a sensor. The ds620 from maxim shows very good but it's a smd package...

Now I habe good news, with the OH2RC1 works it fine.
First I clean my openhab2 installation

1. sudo apt-get purge openhab2-offline
2. echo 'deb http://dl.bintray.com/openhab/apt-repo2 testing main' | sudo tee /etc/apt/sources.list.d/openhab2.list
3. sudo apt-get install openhab2
4. sudo systemctl daemon-reload
5. sudo systemctl enable openhab2.service
6. sudo systemctl start openhab2.service

Then under addon I have installed the serial-binding

My standard.things:

Bridge mysensors:bridge-eth:gateway [ ipAddress="192.168.178.81", tcpPort=5003, sendDelay=200, skipStartupCheck=true ] {
/** define things connected to that bridge here */
humidity humi01 [ nodeId="2", childId="0" ]
temperature temp01 [ nodeId="2", childId="1" ]
humidity batt01 [ nodeId="2", childId="255" ]
}

the standard.items:

Number temp01 "Temp. Bath [%.1f °C]" <temperature> { channel="mysensors:temperature:gateway:temp01:temp" }

Number humi01 "Hum. Bath [%.1f %%]" <humidity> { channel="mysensors:humidity:gateway:humi01:hum

I was a little bit confuse about the nodeid, first I set it to the value 1, but I should use nodeid 2 then it works fine for me.

Thank you very much @TimO !!!

@TimO So, with apt-get install I could install two versions of openHAB 2:

1. deb http://dl.bintray.com/openhab/apt-repo2 testing main (this is the beta 5)
2. deb http://dl.bintray.com/openhab/apt-repo2 unstable main
   I don't know how I could install the OH2RC1 Release with apt-get.
   Both versions work with the binding -> 'mysensors:bridge-eth:gateway' changed from OFFLINE to ONLINE message. Then the message "Successfully connect to MySensors Bridge." are shown.
   The things:
   Bridge mysensors:bridge-eth:gateway [ ipAddress="192.168.178.81", tcpPort=5003, sendDelay=200, skipStartupCheck=true ] {
   /** define things connected to that bridge here */
   humidity hum01 [ nodeId="1", childId="0" ]
   temperature temp01 [ nodeId="1", childId="1" ]
   humidity bat01 [ nodeId="1", childId="255" ]
   }
   I install the humidy things with the UI:

message: add new thing mysensor:humidity:gateway:Humidity_2_0' to INBOX
message: Thing mysensor:humidity:gateway:Humidity_2_0' has been added
message: mysensor:humidity:gateway:Humidity_2_0' changed from INITIALIZING to ONLINE

but no values are shown.

How could I install the OH2RC1 Release with apt-get ?